Revert "wezterm: tab management"

This reverts commit 7a2cb682ba.

gui/.config/wezterm/wezterm.lua

@@ -28,9 +28,11 @@ cfg.font_size = fn.set_by_os{
 }
 
 -- visuals
+cfg.window_decorations = 'RESIZE'
 cfg.xcursor_theme = 'Adwaita'
 cfg.use_fancy_tab_bar = false
-cfg.enable_tab_bar = false
+cfg.hide_tab_bar_if_only_one_tab = false
+cfg.show_new_tab_button_in_tab_bar = false
 cfg.tab_max_width = 128
 cfg.window_padding = {
     left = '5pt',